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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: fdc_gsc.c,v 1.5 2004/04/07 18:24:19 mickey Exp $	*/

/*
 * Copyright (c) 1998 Michael Shalayeff
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */


#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <machine/iomod.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>

#include <dev/ic/fdreg.h>
#include <dev/ic/fdlink.h>

#include <hppa/dev/cpudevs.h>

/* controller driver configuration */
int fdc_gsc_probe(struct device *, void *, void *);
void fdc_gsc_attach(struct device *, struct device *, void *);

struct cfattach fdc_gsc_ca = {
	sizeof(struct fdc_softc), fdc_gsc_probe, fdc_gsc_attach
};

int
fdc_gsc_probe(parent, match, aux)
	struct device *parent;
	void *match, *aux;
{
	struct confargs *ca = aux;
	bus_space_handle_t ioh;
	int rv;

	if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
	    ca->ca_type.iodc_sv_model != HPPA_FIO_GPCFD)
		return 0;

	/* Map the I/O space. */
	if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh))
		return 0;

	rv = fdcprobe1(ca->ca_iot, ioh | IOMOD_DEVOFFSET);
	bus_space_unmap(ca->ca_iot, ioh, IOMOD_HPASIZE);
	return rv;
}

void
fdc_gsc_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	struct fdc_softc *sc = (void *)self;
	bus_space_handle_t ioh;
	struct confargs *ca = aux;

	/* Re-map the I/O space. */
	if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh))
		panic("fdcattach: couldn't map I/O ports");

	ioh |= IOMOD_DEVOFFSET;
	sc->sc_iot = ca->ca_iot;
	sc->sc_ioh = ioh;
	sc->sc_ioh_ctl = ioh + FDCTL_OFFSET;

	fdc_attach_subr(sc);
}